US Bridges

Bass Ave over Delta-Mendota Canal

Fair

Fresno County, California · 1.5 MI Northeast of SR 33 · Structure no. 42C0399

Built
1950
75 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
60 ft
3 main spans
Daily traffic
500
2011 count
Owner
County
County Highway Agency

About this bridge

Bass Ave over Delta-Mendota Canal is a concrete continuous slab carrying Bass Ave over Delta-Mendota Canal in Fresno County, California. It was built in 1950, so it is 75 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 500 vehicles a day, roughly 8% of them trucks, projected to reach 585 by 2043. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesBass Ave
CrossesDelta-Mendota Canal
Location1.5 MI Northeast of SR 33
RouteCounty Highway 0
CountyFresno County
StateCalifornia
Coordinates36.78079, -120.37259
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span19 ft (5.9 m)
Deck width35 ft (10.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2011)
Projected traffic585 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bass Ave over Delta-Mendota Canal built?

It was built in 1950, making it 75 years old in 2025.

What condition is Bass Ave over Delta-Mendota Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Bass Ave over Delta-Mendota Canal carry?

About 500 vehicles per day (2011 count), of which roughly 8% are trucks.

How long is Bass Ave over Delta-Mendota Canal?

The structure is 60 ft (18.3 m) long with a longest span of 19 ft (5.9 m) and a deck 35 ft wide.

Who owns Bass Ave over Delta-Mendota Canal?

It is owned by the County Highway Agency.